<template>
  <div class="filters">
    <el-row
      type="flex"
      class="filters-top"
      justify="space-between"
      align="middle"
    >
      <el-col :span="8">
        单程： 广州 - 上海 / 2019-06-17
      </el-col>
      <el-col :span="4">
        <el-select
          size="mini"
          v-model="airport"
          placeholder="起飞机场"
          @change="runFilters"
        >
          <el-option
            v-for="(item, index) in options.airport"
            :key="index"
            :label="item"
            :value="item"
          >
          </el-option>
        </el-select>
      </el-col>
      <el-col :span="4">
        <el-select
          size="mini"
          v-model="flightTimes"
          placeholder="起飞时间"
          @change="runFilters"
        >
          <el-option
            v-for="(item, index) in options.flightTimes"
            :key="index"
            :label="`${item.from}:00 - ${item.to}:00`"
            :value="`${item.from},${item.to}`"
          >
          </el-option>
        </el-select>
      </el-col>
      <el-col :span="4">
        <el-select
          size="mini"
          v-model="company"
          placeholder="航空公司"
          @change="runFilters"
        >
          <el-option
            v-for="(item, index) in options.company"
            :key="index"
            :label="item"
            :value="item"
          >
          </el-option>
        </el-select>
      </el-col>
      <el-col :span="4">
        <el-select
          size="mini"
          v-model="airSize"
          placeholder="机型"
          @change="handleAirSize"
        >
          <el-option
            v-for="(item, index) in planeSize"
            :key="index"
            :label="item.lable"
            :value="item.value"
          >
          </el-option>
        </el-select>
      </el-col>
    </el-row>
    <div class="filter-cancel">
      筛选：
      <el-button
        type="primary"
        round
        plain
        size="mini"
        @click="handleFiltersCancel"
      >
        撤销
      </el-button>
    </div>
  </div>
</template>

<script>
export default {
  props: {
    options: Object,
    flights: Array
  },
  data() {
    return {
      airport: "", // 机场
      flightTimes: "", // 出发时间
      company: "", // 航空公司
      airSize: "", // 机型大小
      planeSize: [
        { lable: "大", value: "L" },
        { lable: "中", value: "M" },
        { lable: "小", value: "S" }
      ]
    };
  },
  methods: {
    runFilters() {
      // 复制原来100条数据
      let newList = [...this.flights];
      if (this.airport) {
        newList = this.flights.filter(el => {
          return el.org_airport_name == this.airport;
        });
      }
      if (this.flightTimes) {
        newList = newList.filter(el => {
          const planeTime = Number(el.dep_time.split(":")[0]);
          const from = Number(this.flightTimes.split(",")[0]);
          const to = Number(this.flightTimes.split(",")[1]);
          return planeTime > from && planeTime < to;
        });
      }
      if (this.company) {
        console.log("选择了航空公司");
        newList = this.flights.filter(el => {
          return el.airline_name == this.company;
        });
      }
      if (this.airSize) {
        newList = newList.filter(el => {
          return el.plane_size == this.airSize;
        });
      }
      this.$emit("setDatdLit", newList);
    },
    // // 选择机场时候触发
    // handleAirport(value) {
    //   const newList = this.flights.filter(el => {
    //     return el.org_airport_name == value;
    //   });
    //   this.$emit("setDatdLit", newList);
    // },

    // // 选择出发时间时候触发
    // handleFlightTimes(value) {
    //   const newList = this.flights.filter(el => {
    //     const planeTime = Number(el.dep_time.split(":")[0]);
    //     const from = Number(value.split(",")[0]);
    //     const to = Number(value.split(",")[1]);
    //     return planeTime > from && planeTime < to;
    //   });
    //   this.$emit("setDatdLit", newList);
    // },

    // // 选择航空公司时候触发
    // handleCompany(value) {
    //   console.log("选择了航空公司", value);
    //   const newList = this.flights.filter(el => {
    //     return el.airline_name == value;
    //   });
    //   this.$emit("setDatdLit", newList);
    // },

    // // 选择机型时候触发
    // handleAirSize(value) {
    //   const newList = this.flights.filter(el => {
    //     return (el.plane_size = value);
    //   });
    //   this.$emit("setDatdLit", newList);
    // },

    // 撤销条件时候触发
    handleFiltersCancel() {
      this.airport = ""; // 机场
      this.flightTimes = ""; // 出发时间
      this.company = ""; // 航空公司
      this.airSize = ""; // 机型大小
      this.runFilters();
    }
  }
};
</script>

<style scoped lang="less">
.filters {
  margin-bottom: 20px;
}

.filters-top {
  > div {
    /deep/ .el-select {
      margin-left: 10px;
    }
  }
}

.filter-cancel {
  margin-top: 10px;
}
</style>
